ORCHID TECHNOLOGY
PCNET (REV. C)
NIC Type | Unidentified |
Network Transfer Rate | Unidentified |
Data Bus | 8-bit ISA |
Topology | Linear Bus |
Wiring Type | RG-11A/U 75ohm coaxial RG-59B/U 75ohm coaxial |
Boot ROM | Not available |
CONNECTIONS | |
Function | Label |
RG-11A/U or RG-59B/U 75ohm coaxial connector | CN1 |
USER CONFIGURABLE SETTINGS | |||
Setting | Label | Position | |
» | Factory configured - do not alter | SW2/1 | Off |
» | Factory configured - do not alter | SW2/2 | Off |
» | Factory configured - do not alter | SW2/3 | Off |
» | Factory configured - do not alter | SW2/4 | Off |
» | Factory configured - do not alter | SW2/5 | Off |
» | Factory configured - do not alter | SW2/6 | Off |
» | Factory configured - do not alter | SW2/7 | Off |
» | Factory configured - do not alter | SW2/8 | Off |
INTERRUPT | |
Setting | JP1 |
IRQ2 | Pins 4 & 6 closed |
IRQ3 | Pins 5 & 6 closed |
IRQ4 | Pins 6 & 7 closed |
IRQ5 | Pins 6 & 8 closed |
NODE ADDRESS | ||||||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
1 | Off | Off | Off | Off | Off | Off | Off | On |
2 | Off | Off | Off | Off | Off | Off | On | Off |
3 | Off | Off | Off | Off | Off | Off | On | On |
4 | Off | Off | Off | Off | Off | On | Off | Off |
5 | Off | Off | Off | Off | Off | On | Off | On |
251 | On | On | On | On | On | Off | On | On |
252 | On | On | On | On | On | On | Off | Off |
253 | On | On | On | On | On | On | Off | On |
254 | On | On | On | On | On | On | On | Off |
255 | On | On | On | On | On | On | On | On |
Note: A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. SW1/1 is the Most Significant Bit and switch SW1/8 is the Least Significant Bit. The switches have the following decimal values: SW1/1=128, SW1/2=64, SW1/3=32, SW1/4=16, SW1/5=8, SW1/6=4, SW1/7=2, SW1/8=1. Turn off the switches and add the values of the switches that are off to obtain the correct node ID. (Off=0, On=1)Node address 0 is reserved and should not be used. |